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Your search keyword '"Valentim dos Santos, Jessé"' showing total 10 results
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10 results on '"Valentim dos Santos, Jessé"'

1. Detailed characterization of iron-rich tailings after the Fundão dam failure, Brazil, with inclusion of proximal sensors data, as a secure basis for environmental and agricultural restoration

Author

T. Silva de Sá, Rafaella, Tesser Antunes Prianti, Marcelo, Andrade, Renata, Oliveira Silva, Aline, Rodrigues Batista, Éder, Valentim dos Santos, Jessé, Magno Silva, Fernanda, Aurélio Carbone Carneiro, Marco, Roberto Guimarães Guilherme, Luiz, Chakraborty, Somsubhra, C. Weindorf, David, Curi, Nilton, Henrique Godinho Silva, Sérgio, and Teixeira Ribeiro, Bruno

Published
2023
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2. Increased mobilization of geogenic arsenic by anthropogenic activities:the Brazilian experience in mining and agricultural areas

Author

Bueno Guerra, Marcelo Braga, primary, de Oliveira, Cynthia, additional, Rocha de Carvalho, Mariana, additional, Silva, Aline Oliveira, additional, Santana Alvarenga, Ingrid Fernanda, additional, Barbosa, Marisângela Viana, additional, Feitosa, Marina Monteiro, additional, Penido, Evanise Silva, additional, Valentim dos Santos, Jessé, additional, Carbone Carneiro, Marco Aurélio, additional, Bundschuh, Jochen, additional, and Guimarães Guilherme, Luiz Roberto, additional

Published
2023
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3. WITHDRAWN: The conversion of murundu fields into agricultural areas impacts soil attributes after several years of cultivation

Author

Barbosa, Marisângela Viana, primary, Silva, Aline Oliveira, additional, Valentim dos Santos, Jessé, additional, Freitas, Douglas Siqueira, additional, Louzeiro de Aguiar Santiago, Flávia, additional, Sales, Flávia Reis, additional, Luísa de Castro, Jordana, additional, Emrich Pinto, Juliana Volpi, additional, Sales, Luciane Reis, additional, Lutgarda Cazon Tapias, Nury Mariel, additional, Arquimed Lopes de Sá, Olavo Augusto, additional, Rodríguez-Rodríguez, Raquel Milagros, additional, Farias, Thiago Palhares, additional, Guimarães, Amanda Azarias, additional, Rufuni, Marcia, additional, Rose de Almeida Ribeiro, Paula, additional, Maria de Souza Moreira, Fatima, additional, and Aurélio Carbone Carneiro, Marco, additional

Published
2022
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10. Biological attributes of rehabilitated soils contaminated with heavy metals.

Author

Valentim dos Santos, Jessé, Varón-López, Maryeimy, Fonsêca Sousa Soares, Cláudio Roberto, Lopes Leal, Patrícia, Siqueira, José, and de Souza Moreira, Fatima

Subjects
ZINC, COPPER in soils, LEAD in soils, CADMIUM, SOIL composition, EUCALYPTUS camaldulensis, BRACHIARIA decumbens
Abstract

This study aimed to evaluate the effects of two rehabilitation systems in sites contaminated by Zn, Cu, Pb, and Cd on biological soil attributes [microbial biomass carbon (C mic), basal and induced respiration, enzymatic activities, microorganism plate count, and bacterial and fungal community diversity and structure by denaturing gradient gel electrophoresis (DGGE)]. These systems (S and S) consisted of excavation (trenching) and replacement of contaminated soil by uncontaminated soil in rows with Eucalyptus camaldulensis planting (S-R and S-R), free of understory vegetation (S-BR), or completely covered by Brachiaria decumbens (S-BR) in between rows. A contaminated, non-rehabilitated (NR) site and two contamination-free sites [Cerrado (C) and pasture (P)] were used as controls. C mic, densities of bacteria and actinobacteria, and enzymatic activities (β-glucosidase, acid phosphatase, and urease) were significantly higher in the rehabilitated sites of system 2 (S-R and S-BR). However, even under high heavy metal contents (S-R), the rehabilitation with eucalyptus was also effective. DGGE analysis revealed similarity in the diversity and structure of bacteria and fungi communities between rehabilitated sites and C site (uncontaminated). Principal component analysis showed clustering of rehabilitated sites (S-R and S-BR) with contamination-free sites, and S-R was intermediate between the most and least contaminated sites, demonstrating that the soil replacement and revegetation improved the biological condition of the soil. The attributes that most explained these clustering were bacterial density, acid phosphatase, β-glucosidase, fungal and actinobacterial densities, C mic, and induced respiration. [ABSTRACT FROM AUTHOR]

Published
2016
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